Compressing hay-sling pulley.



No. 671,245. 4 Patented Apr. 2, Ism.

` r. |a. .rsmc| |.|:|a'l CUMPRESSING HAY SUNG PULLEY. (Application led AugJ, 1900.?

(No Model.)`

`2 Sheets-'Sheet 1 I QG@ @o @f Pate'n't'ed Apr. 2, 190|.

F. B.y STBICKLER. COMPRESSING BAY SLINE PULLEY.

n 4(Appliemnn me@ Angle, wow (No Model.) f 2 Sheets-Sheet 2.

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FRANK BOWMANWSTRIOKLER, OF JANESVILLE, WISCONSIN, ASSIGNOR TO THE JANESVILLE HAY TOOL COMPANY, OF SAME PLACE. l

COlVlPRESSVING HAY-SLING PU LLEY.

SPECIFICATION forming part of Letters PatentA No.` 671,245, dated April 2, 1901.

Application filed August 16,1900- Serial No. 27,028. Y(No model.)

To all whom t may concern:

Beit known that LFRANK BOWMAN STRIOK- LER, of Janesville, county or Rock, and State of Wisconsin, have invented certain new and useful Improvements in Oompressing Hay- Sling Pulleys, of which the followingis a specilication.

This invention relates to improvements in com pressing-pulleys for use in conjunction with iiexible slings for handling hay and the like bulky commodities; and it has for its salient objects to provide an improved construction in devices of the character referred to whereby the two cooperating members are caused to approach each other and interlock more readily and more certainly than in constructions heretofore known, to provide an improved construction whereby the interlocking andseparation of the cooperating pulley mem bers are facilitated and expedited, to provide improvements in the construction whereby certain parts on one member coperate with the corresponding parts on the other member to form guards which prevent the possibility of the ropes from being jammed or injured, to provide improvements in the details of construction whereby the coperating pulley members are held in divergent relation after the load has been discharged theref1om,tl1ere by preventing the sling from becomingtangled or twisted together, and in general to provide simpliiied andimproved details whereby the construction of the partsis simplified and cheapened without the sacrifice of the necessary strength.

To the above ends the invention consists in the matters hereinafter described, and more particularly pointed out in the appended claims, and the same will be more readily undex-stood by reference to the accompanying drawings in conjunction with the description, wherein- Figure l. is an elevation of an overhead carrier with a pair of compressing-pulleys embodying my invention interlocked and suspended therefrom. Fig. 2 is a side elevation of the cooperating pulley members in inter` locked position,the pulley-rope being omitted. Fig. 3 is a horizontal sectional view taken on line 3 3 of Fig. 2 and looking downwardly. Fig. e is a central vertical sectional view taken in the plane of the pulley-hooks through the upper portions of the cooperating pulley members, the headed shank end of one member being shown in side elevation in position between the locking-jaws of the other member and the headed shank end of the receivingpulley member being likewise shown in side elevation. Fig. 5 is a modified form of the latch mechanism.

As is well understood by those familiar with the art to which this invention belongs, compressing-pulleys of the general character described herein are used in conjunction with a flexible sling, which is adjusted underneath the load to be transported, the respective ends of this sling being connected with the hooks of the respective pulley members and the sling being constructed in two parts united by a trip-lock at a point intermediate of its length, which trip-lock when released drops the load, leaving the two parts of the sling dangling from the respective pulley members. The compressing-pulley members are usually also used in conjunction with an overhead carrier, the compressing-pulleys after having been drawn into interlocked position,`with the loaded sling suspended therefrom, being elevated and brought into locked engagement with an overhead carrier, whereby the load is transported to a desired point above its discharge.

The present invention relates only to the compressing-pulleys proper, and it is to be understood that compressi 11g-pulleys embodying my invention may be used in conjunction with any suitable type of overhead carrier.

Referring now to the drawings, l designates as a whole any suitable overhead carrier provided with a pair of hoisting-pulleys 2.

3 4 respectively designate as a whole the several compressing-pulley members, which for convenience of description will be hereinafter designated the f receiving-pulley and the engaging-pulley.

The receiving pulley, as shown herein, comprises a main body composed of' two side `frame melnbers 5 5, spaced apart and arranged to embrace at their upper ends a detachable shank-head G and provided with offset portions 7 7, whereby the space between the members is enlarged throughout the cen- IOO tral portion of the main body and arranged to converge together and terminating in a hook member 8 at their lower ends, as indicated clearly in the several figures of the drawings. The lower hooked ends of said members are rigidly united, conveniently by means of rivets, while their upper ends, which embrace the detachable shank (5, are

desirably united by lneans of a through-bolt 6. Those portions 9 which define or inclose the widest part of the main body are desirably shaped to extend parallel with each other, and through this portion of the main body are inserted two bolts 10 11, upon which are respectively mounted the spring-pressed latch members 12 13. Each of said latch members in the embodiment shown herein consists of a dat leaf-like main body provided with a pair of pintle-ears, as 14 15 and 16 17, which are respectively engaged with the bolts 10 and 11, said latches being arranged to rest when in their normal position in the same plane with each other and being held in this position by means of supporting projections 18, (see Figs. 4 and 1,) formed integrally with the main side frame members 5 in position to underlie the ends of said latches. In their meeting edges the latches are provided with recesses 19 to accommodate the shank of the engaging pulley, and said latches are held normally in spring-pressed engagement with their underlying supports by means of coiled springs 2O and 21, respectively, which are coiled about the pintle-bolts and arranged to act upon said latches to throw the latter downwardly, as indicated clearly in the drawings. In order that said latches may be lifted manually to release the engaging pulley, each is provided with an upwardly-extending fingerpiece, as 22 23, each conveniently formed integrally with one of the pintle-ears of the latch.

24 24 designate the guide-pulleys, which are severally mounted upon the ends of thek bolt 11 outside of the main side frames 5. In order to support the outer ends of said bolts, cheek-pieces 25 are provided, which are rigidly united with the side frame members 5 by lneans of the bolt 10 and extend from their point of connection with said side frames out wardly and then upwardly parallel with the outer side of the pulley 24 and are engaged with the ends of the bolt 11, thereby not only supporting said bolt, but also forming guidepassages 26, through which the pulley-rope is trained.

In order to guide the headed end of the engaging pulley into engagement with the latches of the com pressing-pulley, the lower sides of the supporting-lugs 18 are made to converge upwardly and inwardly, as best indicated in Fig. 1; In order to form a third guidelocated at that side opposite from which the engaging pulley advances, I provide an angular plate or part 27, which is mounted to extend between the two side members 5 of the main body, said guide-plate being provided at one end with ears 28, which are engaged with the bolt 10, as best indicated in Fig. 3, and being held rigid against rotation by having its lower edge engaged with notches 29, formed in the side members 5, as indicated clearly in Fig. 4. '[he angular portion of said guide-platc is so shaped as to form a suitable guide for directing the head of the engaging lpulley between the latches, and the extreme point 30 of the angle forms a shoulder which engages the shank of the engaging pulley and holds the latter in divergent relation to the receiving-pulley after the load has been discharged, as indicated clearly in Fig. 2.

Describing now the engaging pulley member, said member comprises a suitable frame 31, preferably having its opposite sides or cheek-pieces formed integrally with each other, and between which is mounted a pulley-wheel 32, held in position by means of a bolt 33, extending through the cheek-pieces and the pulley. The lower end of the pulleyframe terminates in a sling-hook 34 substantially similar to thatsof the receiving-pulley, while the opposite endy of the frame is provided with a headed shank 35, which is bent to extend at an angle to the plane of the pulley, so as to facilitate its deflection into engagement with the latches of .the receivingpulley when the load carried therebyis of such dimensions as to cause said pulley to approach the receiving-pulley from a direction approximately in alinement with the main body of the latter. Ata point adjacent to the base of the shank portion of the engaging pulley the latter is provided with a pair of oppositely-extending guards or wings 3G, which are suitably formed and shaped to engage with the lower edges 37 of the main side members 5 of the receiving-pulley when the two members are interlocked in such manner as to prevent the .engaging pulley from oscillating laterally, and thereby permitting the pulleys of the two members to approach near enough to jam or cut the pulley-rope 3S. In order to confine the pulley-rope in proper engagement with the pulley-wheel 32 the frame of said member is provided with a guard 39, conveniently formed in the shape of a fiattened ring, which embraces the cheek-pieces of the main frame and is engaged with the bolt 33 thereof, as indicated clearly in the drawings, Desirably each of the sling-hooks 8 and 34 of the two pulley members is provided withl a pivoted latch 40, arranged to prevent the accidental disengagement of the sling therefrom.

The operation of the devices will be clear from the foregoing description, butv may be brieliy described, as follows: The pulley-rope 38, having one end fixedly engaged with one of the pulleys 2 of the overhead carriage, is trained thence around one of the side pulleys of the receiving-pulley member, then around thev pulley of the engaging pulley member and back around the pulley at the opposite IOO IIO

side of the receiving member, and thence over the second supporting-pulley of the overhead carriage, as shown clearlywn Fig. l. By reason of this arrangement of the rope, assuming that the two members are engaged with the opposite ends ot a sling arranged beneath a load ofhay or the like, the drawing up of the rope will Iirst cause said pulley members to approach each other until the engaging pulley strikes and passes into engagement with the latchin g mechanism of the receivingpulley, whereupon the further drawing up of the rope will carry the two pulleys bodily upwardly intoengagement weith the overhead carrier. After the load has been discharged and the compressing-pulleys released from the overhead carriage and lowered into reach of the operator to receive a new load he will disengage them from each other by lifting the two latches manually and allowing the engaging pulley to drop ont, after which the sling, with the two members attached to its respective ends, may be adjusted beneath the next load. It is to be noted that after the load has been discharged from the sling the two parts of the latter will hang suspended free from each other, so as not to become entangled by reason of the divergent relation bywhich the two members of the compressing-pulley are held when interlocked.

In Fig. 5 I have shown a modiiied form of the latch mechanism, the several latch members being so constructed that the lifting of either one will simultaneously effect the lifting of the other, so that the two latches will open together. In this instance the latch is constructed substantially as hereinbefore described, except that each latch member l2' and 13 is provided adjacent to one end with a projection or tongue tl, arranged to extend beneath the proximate edge of the opposite latch .member and curved downwardly, as indicated clearly in said Fig. 5, so that as one latch member is lifted its said tongue will sim ultaneously lift the opposite latch member. Preferably and as shown in the present instance the tongue project-ions are arranged at opposite ends of the respective latches, so as to leave the central part of the latch unobstructed without increasing the length of the latch or width between the side pieces of the member. It will be understood that this construction has the advantage of enabling the engaging pulley to be released from the rcceiving-pulleyby the use of one hand of the operator, whereas the previously described construction requires the use of both hands.

I claim as my invention- 1. In a compressing-pulley member, the combination of a pair of main side frame members having their intermediate portions spaced apart, a pair of bolts extending transversely between said members, a pair of latch members pi votally mounted upon said bolts, supports arranged to hold said latch members in the same plane and against downward movement, and inclined guides below said latch members for directing a headed shank therebetween, substantially as described.

2. In a compressing-pulley, the combination of a pair of main side frame members having their intermediate portions spaced apart, a pair of bolts arranged to extend through said main side frame members parallel with each other and at a distance apart, a latching member pivotally mounted upon each of said bolts, the supports arranged to hold said latching members substantially in the same plane with each other, springs acting on said latching members to hold them yieldingly in engagement with said supports, guides beneath said latching members arranged to direct a headed shank into engagement with the latches, a finger projection upon each latching member whereby the latter may be manipulated, a pulley-wheel mounted upon each end of one of said bolts outside of the main side frame members, guards mounted upon the main side frame members in position to conine the rope in bearing with each pulley, a headed shank upon the upper end of said pulley member and a hook upon its opposite end, substantially as described.

3. In a compressing-pulley member of the characterdescribed, the combination with the main frame members 5 spaced apart throughout their intermediate portions, of the supporting-bolt l() extending therethrough, the latch l2 pivoted upon said bolt, and the combined guide and support 27 consisting of the angular plate arranged to extend between said side frame members, provided with ears whereby it is suspended from said supporting-bolt and having its innerend margins engaged with notches in the main frame, said combined guide and support thus serving to guide and direct the head of a cooperating pulley member into engaging relation with said latch, substantially as described. 1. In a compressing-pulley member of the character described, the combination of the main side frame members 5, the supportingbolts l0 and ll extending therethrough, the latches l2 and 13 mounted upon said bolts and arranged to normally rest in contact with the subjacent guides 1S, the springs arranged to act upon said latches, the pulleys mounted upon the ends of the bolt ll outside ofthe main side frame members, the guards 25 secured to the main frame members and arranged to embrace the outer sides of said pulleys, the detachable headed shank 6 secured between said side frame members, and the hook S, substantially as described.

FRANK BO VVMAN STRICKLER.

Witnesses: W. 0. NEwHoUsE, BURR J. SCOTT.

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